Patent GB-788743-A (GB)
Title: The stabilising and softening of the halogen-containing organic compounds
IPC: C08K5/156
Filed: 1955-04-29
Abstract: Halogen-substituted hydrocarbon such a chloroparaffins are stabilized with a 1,2- or 1,3-acetal of an alcohol containing at least three hydroxy groups in the molecule or a substitution product thereof, the free hydroxyl groups of the acetal having been esterified with a monobasic carboxylic acid, or with a polycarboxylic acid, or etherified with a hydroxy-compound. Acetals mentioned are 1,2-formalglycerine capric acid ester, 1,2-formalglycerine lauric acid ester, 1,3-formal glycerine oleic acid ester, 1,2-acetaldehyde glycerine naphthenic or benzoic acid ester, benzaldehydeacetal-glycerine lauric or oleic or myristic acid ester, oxalic acid-di-(1,2-formal-glycerine) ester, adipic acid di-(1,3-formalglycerine) ester, diadipic acid tetra - (1,2 - acetaldehyde - acetalglycerine) ester, phthalic acid di-(benzalglycerine) ester, and acetals of esters of tartaric acid, saccharic acids, or mucic acid.ALSO:Halogen-containing polymers are plasticized and/or stabilized by mixing with one or more 1,2- or 1,3-acetals of an alcohol containing at least three hydroxyl groups in the molecule or a substitution product thereof, the free hydroxyl groups of the acetal having been esterified with a higher monobasic carboxylic acid, or with a polybasic carboxylic acid or with a hydroxycompound.  If desired known plasticizers may also be present. Polymers mentioned are polyvinyl chloride, halogenated polystyrene, halogenated polyvinylidene compounds, and halogenated synthetic rubbers.  The acetal may be 1,2-formalglycerine capric or lauric acid ester, 1,3-formal glycerine oleic acid ester, 1,2-acetaldehyde-acetal glycerine caprylic acid ester, 1,3-acetaldehyde-acetal glycerine naphthenic or benzoic acid ester, benzaldehyde-acetal-glycerine lauric, oleic or myristic acid ester, oxalic acid - di - (1,2 - formalglycerine) ester, adipic acid di-(1,3-formalglycerine) ester, diadipic acid tetra - (1,2 - acetaldehyde - acetal - glycerine) ester, phthalic acid di(benzalglycerine) ester, and acetals of esters of tartaric acid, saccharic acids or mucic acid. The stabilized polymers may be made into threads, bands, films, foils, bars, tubes, plates, slabs or blocks.ALSO:Halogenated natural rubber is stabilized with a 1, 2-, or 1,3- acetal of an alcohol containing at least three hydroxyl groups in the molecule or a substitution product thereof, the free hydroxyl groups of the acetal having been esterified with a monobasic carboxylic acid or with a polycarboxylic acid or etherified with a hydroxycompound.  Acetals mentioned are 1, 2-formalglycerine capric acid ester, 1, 2-formalglycerine lauric acid ester, 1, 3-formal glycerine oleic acid ester, 1, 2-acetaldehyde-glycerine caprylic acid ester, 1, 3-acetaldehyde-acetal glycerine naphthenic or benzoic acid ester, benzaldehyde-acetal-glycerine lauric or oleic or myristic acid ester, oxalic acid-di-(1, 2-formalglycerine) ester, adipic acid di-(1, 3-formalglycerine) ester, diadipic acid tetra-(1, 2-acetaldehyde-acetal-glycerine) ester, phthalic acid di-(benzalglycerine) ester, and acetals of esters of tartaric acid, saccharic acids, or mucic acid.